Speed Feed Trimmer Head – Quick-Load Universal Fit (OEM Part No: SF450, 55265) Upgrade your trimmer with the Straight Shaft 450 Speed Feed Trimmer Head, designed for fast and hassle-free line reloading. Built for professional users, this high-quality trimmer head reloads in just 30 seconds, minimizing downtime and maximizing efficiency. Key Features: ✔ Speed Feed System – Quickly reloads trimmer line in under 30 seconds✔ Multi-Fit Adaptor Kit Included – Ensures compatibility with a wide range of trimmers✔ Durable & Reliable – Ideal for professional landscapers and heavy-duty applications✔ Universal Fit for Straight Shaft Trimmers – Adaptable to multiple brands and models Adapter Sizes Included: M12 x 1.50 LHT M10 x 1.25 LHT M10 x 1.0 LHT M9 x 1.25 LHT M8 x 1.25 LHT M8 Stud M7 Stud Specifications: OEM Part Numbers: SF450, 55265 Outside Diameter: 4 ¾" (120mm) Fits: Most straight shaft trimmers (multi-fit adapter kit included)